A 1/8 inch pilot hole followed by a 3/4 inch dia hole to be drilled in end of a 3.875 inch dia shaft.Calculate the RPM of each drill. $ w8 B7 Q/ O- T x1 _Note: CS=80 % G- J I; X# s! D * k- r. O0 D& x& [* j' o, e) WRPM 1/8= i/ a- }' Y" f: V5 ]RPM 3/4=. \* b7 n. t* d# N0 \5 D
P$ X: T4 n. x
Thanks a lot.
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发表于 2007-11-24 20:29
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